<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Loading...</title>
  <style>
    body {
      margin: 0;
      padding: 0;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      background: transparent;
    }

		.window {
      width: 200px;
      height: 200px;
      border-radius: 50%; /* 将边框半径设置为50%，使窗口呈现圆形 */
      display: flex;
      justify-content: center;
      align-items: center;
      flex-direction: column; /* 垂直居中 */
    }

    .loader {
      border: 8px solid #f3f3f3; /* Light grey */
      border-top: 8px solid #3498db; /* Blue */
      border-radius: 50%;
      width: 50px;
      height: 50px;
      animation: spin 1s linear infinite;
    }
		.loading-text {
      font-size: 16px;
			font-weight: bolder;
      color: #fff;
      margin-top: 10px; /* 设置一些顶部间距 */
    }

    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }
  </style>
</head>
<body>
	<div class="window">
		<div class="loader"></div>
		<span class="loading-text">Loading...</span>
	</div>
</body>
</html>